Current Sensor Calibration - Safe and Accurate
In this Video I propose a swift, safe and accurate method to calibrate your current sensor (NO FAST-SPINNING PROPS!). The method relies on 12V, 50W halogen light bulbs and will work without utilizing a multimeter, amperemeter or powermeter of any kind. All you need are the voltage- and current-readings from your (Betaflight-)Configurator while dumping current to the light bulbs and make use of the simple Excel-File you can download below.
The method is tested and confirmed to work with the Omnibus F4 Pro V3 flight controller as an example. Most probably it will work with other flight controllers, or in entirely different applications too.
In addition, it is shown, that voltage sensors tend to underestimate the actual voltage as soon as current is drawn by loads. This leads to an exaggerated display of lipo-voltage-sagging.
I_Sensor_Calib.xls:
I_Sensor_Calib.xlsx:
The method is tested and confirmed to work with the Omnibus F4 Pro V3 flight controller as an example. Most probably it will work with other flight controllers, or in entirely different applications too.
In addition, it is shown, that voltage sensors tend to underestimate the actual voltage as soon as current is drawn by loads. This leads to an exaggerated display of lipo-voltage-sagging.
I_Sensor_Calib.xls:
I_Sensor_Calib.xlsx:
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